UPD168113 datasheet(9/50 Pages) NEC

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Data Sheet S16423EJ2V0DS

µ PD168113

6. COMMAND INPUT TIMING CHART

This IC can drive a stepping motor, DC motor, and solenoid by serial control if serial control is set during initialization.

If direct input is set, this IC can drive the load by an input/output PWM control method.

With the serial control setting, two or more motors can be simultaneously controlled by commands.

Be sure to execute initialization (addresses 0 to 2) immediately after power application and immediately after reset.

After initialization, the motors can be controlled simply by inputting driving data (addresses 3 to F).

To execute initialization again from the start, the RESET pin must be made high and data of addresses 0 to 2 must

be input.

6.1 Setting Examples

6.1.1 Stepping motor

Starts output after wait time synchronized with LATCH has fallen.

LATCH

SCLK/SDATA

Pulse output

Wait time

Pulse output

Excited status (stopped)

6.1.2 DC motor/coil

Starts output after LATCH has fallen.

LATCH

SCLK/SDATA

Output status

OFF

6.2 Example of Address Setting

LATCH

SCLK

Address 0

Initializaition

Address 0

Address 1

Address 2

Address 1 Address 2

Address 7

Constant-current driving

Address 7

Address 3

Constant-current driving

Address 3

Address 4

SDATA

Address 5

DC motor

Address 5

Address 8 to address B

Stepping motor

Address 8 to address B

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